echarts helper 源码
echarts helper 代码
文件路径：/src/visual/helper.ts
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/**
* A mapping of visual provided to developer and visual stored in the List module.
* To developer:
* 'color', 'opacity', 'symbol', 'symbolSize'...
* In the List module storage:
* 'style', 'symbol', 'symbolSize'...
*/
import SeriesData from '../data/SeriesData';
export function getItemVisualFromData(data: SeriesData, dataIndex: number, key: string) {
switch (key) {
case 'color':
const style = data.getItemVisual(dataIndex, 'style');
return style[data.getVisual('drawType')];
case 'opacity':
return data.getItemVisual(dataIndex, 'style').opacity;
case 'symbol':
case 'symbolSize':
case 'liftZ':
return data.getItemVisual(dataIndex, key);
default:
if (__DEV__) {
console.warn(`Unknown visual type ${key}`);
}
}
}
export function getVisualFromData(data: SeriesData, key: string) {
switch (key) {
case 'color':
const style = data.getVisual('style');
return style[data.getVisual('drawType')];
case 'opacity':
return data.getVisual('style').opacity;
case 'symbol':
case 'symbolSize':
case 'liftZ':
return data.getVisual(key);
default:
if (__DEV__) {
console.warn(`Unknown visual type ${key}`);
}
}
}
export function setItemVisualFromData(data: SeriesData, dataIndex: number, key: string, value: any) {
switch (key) {
case 'color':
// Make sure not sharing style object.
const style = data.ensureUniqueItemVisual(dataIndex, 'style');
style[data.getVisual('drawType')] = value;
// Mark the color has been changed, not from palette anymore
data.setItemVisual(dataIndex, 'colorFromPalette', false);
break;
case 'opacity':
data.ensureUniqueItemVisual(dataIndex, 'style').opacity = value;
break;
case 'symbol':
case 'symbolSize':
case 'liftZ':
data.setItemVisual(dataIndex, key, value);
break;
default:
if (__DEV__) {
console.warn(`Unknown visual type ${key}`);
}
}
}
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